Product Overview - Keithley 2520 User Manual

Model 2520 User's Manual

Product overview

The Model 2520 Pulsed Laser Diode Test System combines high-current laser diode pulse
and voltage measurement capabilities, and two stable DC bias voltage sources with two
low-noise ammeters for dual-channel photodiode measurements. The unit has 0.3% basic
laser diode voltage measurement accuracy, and 0.3% basic photodiode current measure-
ment accuracy. A separate, remote testhead allows versatility for signal connections.
The Model 2520 has the following source and measure capabilities:
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Some additional capabilities of the Model 2520 include:
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Source DC laser diode current from 10µA to 1A.
Source laser diode current pulses from 10µA to 5.0A.
Measure laser diode voltage from 0.33mV to 10.5V.
Measure photodiode current from 0.7µA to 105mA on each of two channels.
Source photodiode bias voltage on each of two channels from 0 to ±20V.
Sweep capabilities: linear and logarithmic staircase, and custom sweeps for the
laser diode current source.
Digital I/O port to control other instruments.
Programming language and remote interfaces — The Model 2520 uses the SCPI
programming language and two remote interface ports (IEEE-488/GPIB and RS-
232C).
Trigger-Link interface to Keithley Series 7000 switching hardware.
Pulse sync out — Allows synchronizing external instruments with current pulse.
Math functions — V/I, I/V, power, and MX + B functions.
Reading and setup storage — Voltage and current readings and seven setups (five
user defaults, factory default, *RST default) can be stored and recalled.
Closed-cover calibration — The instrument can be calibrated either from the front
panel or remote interface.
Getting Started 1-5